Tulipa ostrowskiana Regel

Tulipa ostrowskiana Regel, Gartenflora 33: 34 (1884). Fig. 34 Type. Kazakhstan • ‘ Iter Turkestanicum, Kl. Almaty Schlucht bei Werny’, 2 April 1879, A. Regel (K). General distribution. Kazakhstan, and Kyrgyzstan (POWO 2024). Distribution in Kazakhstan and habitat. Kyrgyz Alatau and Trans-Ili Kungey Alatau. This species grows on slopes with deep nutritious soil (less often gravelly), in the lower and middle mountain belts. Conservation status. Tulipa ostrowskiana is assessed near threatened at the global level (IUCN 2024). It is included in the Red Book of Kazakhstan (Category III). Phenology. Flowering in April – May; fruiting in June – July. Notes. Tulipa ostrowskiana was described in 1884 by E. L. Regel from collections near Verny (Almaty). This species was first collected in 1879 by A. E. Regel and A. M. Fetisov (the chief gardener of Pishpek (Bishkek) in charge of the Treasury Garden in Verny) (Ivashchenko and Belyalov 2019). Zonneveld (2009) suggested that T. ostrowskiana may be an allotetraploid originating from T. kolpakowskiana and T. lemmersii based on genome size. Spontaneous hybrids of T. ostrowskiana and T. kolpakowskiana with intermediate flower coloration and habit traits are known in nature (Vvedensky 1935; Ivashchenko and Belyalov 2019).